Seal-lock.



NC., Y 4 PATBNTBD JULY '7, 1908.

W, L. sBBRNG.

SEAL LOCK.

APPLICATION .FILED MAY'B, 1907.

Zia/f5 ya, /07

` "Unrrn stares earner "WILLIAM L. SEBRING, OF COLORADO SPRINGS, COLORADO, ASSIGNOR TO NATIONAL CAR PROTECTION COMPANY', OF CHICAGO, ILLINOIS, A CORPORATION OF WEST VIRGINIA.

snaLLocK.

v- Naseaeas.

Specification el Letters Patent.

Patented July 7, 1908.

Application filed May G, 1907. Serial No. 372,068.

To all whom it 4may concern:

Be it known that l., WILLIAM L. SnsniNG, a citizen of the United States, residing at Colorado Springs, in the county of El Faso and State of Colorado, have invented a eertain-new and useful Iln rovement in Seal- Locks, of which the fol owing is a specili- Acation.

My invention relates to seal locks, and has for its object to provide a seal .lock particularly adapted ior use on'railway cars and the like. i

My invention is illustrated in the accompanying drawings, wherein Figure l is a front view el a lock embodying m i invention, with the parts in the unlocke position; Fig. 2 is a front view of the device of Fig. l showing the partsin their locking position; Fig. 3 is a sectional view taken on line 3--3 of Fig. Y2; Fig. 4 is a' sectional View taken on line 4 4 of Fig. 2 Fig. 5 is Aa sectional view taken on line 5*-5 ol`l Fig. 2 Fig. 6 is a sectional view taken on. line 6 6 of Fig.

Like letters refer to like parts throughoutl the several figures.

i As illustrated in the drawings, the lock comprises a locking. bolt, A, rotatably and ,slidably mounted in a guide or (,:ylinder B, carriedyby the frame or supporting piece C, by means of which the lock is fastened to the device in connection with which it is used. This attachment may be made in any desired manner, as, lor example, by suitable fastening pieces passing through the holes C1, C2 in the supporting ieee C. The locking bolt A is rovided wit 1 an enlarged head A, proviv` ed with areeess Aginto which a. portion of` the frangible locking seal D is received. This recess is formed between the projection A and the engaging iace A4 of the head A1. The lockingpin is provided with a handle A 'by means of which its position may be varied. j Associatedwithsthe locking bolt A is a proijectionA (see Figs. 3 and 5) which limits the rotary movement of the bolt in one direction,

and is arranged so that when it engages the support Cthe bolt is 1n such position that the seal will bereceived in the recess A2 when the bolt is lowered. The sup ort C is provided tu'dinal movement ,of thebolt A, and prevents its Withdrawal from the guide or cylinder B. f 'The headuA1 is so shaped that it will `-in Fig. G.

engage this rejection in all the various positions of the iolt.

When the parts are being assembled the upper part of the su port C is bent backwardly, as shown in t otted lines in Fig. 3, a snll'icient distance to permit the enlarged head to pass by the stop C3 as theJ bolt is inserted in the guide B.. The upper part of the support C may be east in this bent position if desired. The upper part of the sup ort is then bent to the position shown in fuli)lines, thus preventing the removal of the holt. When the device is fastened in position it 'will be seen that the su )ort C cannot then be bent, and it is impossill) e to remove the bolt from the guide. The device is arranged so that the seal receiving chamber' is divided into two `iarts, one of which is associated with the bolt, andthe other with the sta# tionary part ot the lock.

As illustrated in the drawing, vthe Guide or cylinder Il is provided with laterally projecting lugs or parts B1 which project beyond the guide B. These lugs are connected at the bach to the guide B,and the front parts Bl thereof are separated by a space so as to leave the seal l) exposed in order that the characters thereon may be easily seen. These lugs are each provided with a seal receiving recess, B3. A projecting lug Bengages the seal at the bottoni and prevents its removal. The material between the lugs B1 is cut away so as to forni the space B5 and the lower part of the enlarged head A1 lits in this space bctween' the lugs when the parts are in their locking position. The guide or cylinder B may be connected to the supiort C in any desired manner, and is preferably. connected thereto by the connecting parts B and B7 integral therewith. Some suitable device is provided for locking the bolt against longi- .i is received in the recess Ba and is normally 'iressed therein by a spring C5 in the cham;

er C" (see Fig. 3). shaped that when the ball is rejecting therein the bolt cannot be moved ongitdi-- nally, but can be rotated andwhensorotated the inclined face of the recess B8 willress the ball back into the chamber C, as s own Then this is done, the bolt'e'len be The recess Bs iS-l .i

'.reciprocated. The recess Bfmay be out away at one side seas to fo-rmjtheinclined face B9 to facilitate the rotation thereof, the

Vball -ll being forced inwardly by the inclined face when the bolt 'is rotatedf'Yhen the'I bolt is circularin crosssection this inclinedv face EHS not essential because of .the fact"v that the edges of the recess atthejsidesf do not project sofar outwardly as' the edgesat the -top and bottom. The projecting edges at the top and bottom Will prevent the longitudinal movement of the bolt, but those at i moval of the hasp;

the sides being somuch shorter. permit the .incline of the bottom of the' recess to act to;

force the ball inwardly.; Thev support Gis provided with a keeper, E, for the hasp Gon' A passes through a hole in said keeper; as shown in F 1g. 2, when the parts are-1n their locking position so. as toprevent the. re-

'rhe bon is provided with a `Slot remading therethrough for the purpose 'of receiving yspirit of my invention. limit myself to the particularconstruction.

' orseat arranged as herein s' own the seal 1s'` the ordinary seal, or any other suitable vlock-A ing part whichwhen inlposition revente-the longitudinal movement of the bo t. The eind of the. bolt is preferably provided with the inclined face l1 (see lfigj) adapted tov engage l' the ball E when thebolt is being slippediinto position so as to force the ball into the cham.

ber Cthus facilitating tle assembling of the arts.r

herein shown Without departing L' there.ore, donot shown.

The use and operationor my lnvention are v as follows: When the device isree-dy .to be assembled, the upper part of the 's upport'is in the position'shown in dotted-lilies in Fig, 3. The end of the bolt is then placed Iin the guide and 'the bolt pushed therethrough. The thumb o'r finger or some other obstruc tion is laced at the lowerend of the cylinder or guic ev B so as to close the end thereof and prevent the ball E from falling'out. `1When the inclined facel1 of thebolt strikes the ball said ball' is forced into the chamber C4 and the bolt then slides B8 comes opposite t spring forces the ball into said-1eces s. The. assembling of the parts may be facilitated by' past it until the recess insertin' the thumb or some other actuatin part in the end of the guide-Way and pressing the ball into the recess C4. The bolt ycannot now be movedvlongitudinally but can be rotated.. The upper end .of the support is then bent to the positioneshown in furl lines, and the device is ready to be attached in p0si-v l ave' described in detail a particular' con'- struction embodying my invention, butit is of course evident that the parts maybe varied, and that some of the parts `may be" omitted and' othersV used 'vvithfpartsA not.l from the e bolt whereupon the senese sired to insert the frangible seal D the handle forced into the receptacle C4, thus freeing the bolt.' The bolt is then moved longitudinally.

a. sufficient distance to permit the frangible seal if* to be 'inserted in. the seal receiving recessinthe stationary part l; that is' the recessI Esi! 'fhese frangibleseals may be made of 'baked clay-, porcelain, glassl or any resisting fren'gible material, The boltwhich is turned back to its original;position,. that is the position it occupies; in lli Lis 4then inoved t0.- wardi the. seal until t e seal enters. the seal receiving recess AF.' The ball E .then enters' the recess B8 and prevents further' longitution. .ln the use of the device when itis dei .A5 is grasped and pulled toward the operator .A l so as to rotate the bol-t A-until the ball E is 4 dinal Imovement of the bolt. `-'-lhe' parts-are' then inthe positionfshovvn in Fig. 2.- Before l.the boit aimeras; the hiep o is pieces over .85'

the. keeper F 'so that when the bolt -is lowered f 'it weite heid in page, :sie bait through the keeper- F as .shown in the frangible sealpreventsthe bolt. yfrom be? ing rotated.,V The only Wayl that thev parts can be unlocked-is by rasping thehandle A5 i and pulling it outward' y yso that the engaging face A4 vf engages the frangible sealand realrs v it'. The bolt can then :be rotatedsuioiently 'toforce the ballinto 'the receptacle Ctthus -gsein'g 2j When the parts 'are in this' osition the ook is operative hecausetheha E prevents they permitting the boltto be lifted andthe hasp, I

released. The. parts are so arranged' that Wheneverthe bol-t i's rotated to a position- 1 Where `it lcan be moved .longitudinally the i.

frangilile seal is destroyed' an device has been tampered Withcau be readily ascertained. -By lia ,the seal recess removed from its seat, and consequently the fact that the open to inspection; and 'in practice the, seals..

Will be tics, suc as d iderent numbers whichwill be exposed to view. W hen these devices are provided-.With different chara-terisl' used on cars each door will have ayseal of a 'different number, and the conductor, or

other person Whose duty itis to lkee Watch ofthe-matter7 Will'ha've a record of t ese dif? ferent seal numbers; and consequently can V'ascertain when andwhere any 'carhas been to unlock the car theseal is broken, and the bolt rotated a complete 'half turn so thatjthe handle will be out of the wayfthe partslningv I arranged to erniit tliis. In. such' eventzth'e handleA5 W1 l lproject' on the 4side of the 'device'opposite-to that inxvhich it projects in lt will beseen'that -by tins construction the back of the' su port C-'is Vcompletely closed, and may thus e left integral, and the ceases onl T access to the chamber C* and the locking ball E is from the inside or bore of the guide, and that when the pin is in position it completely fills this bore and there is no access to this ball and consequently the device cannot e be tampered with, and the only way the car can be unlocked is by breakingl the seal. I prefer to east the part-s and this van be done Without opening up the back of the support C. so that said back will remain continuous and there is no opening1 upon it which must ybe closed, and there is no indication of the can be easily and quickly fastened to any car or any other device, and fulfils all the con-4 ditions necessary to practical and commercial use.

I claim:

l.. A seal lock comprising a locking;l bolt, a guide therefor, said bolt being longitudinally and rotatably movable in said guide, a seal seat having a part associated with the bolt and a part associated with the lguide, a chamber opening into the bore of the guide, an elastic device in said chamber, a recess in the bolt, and a locking ball adapted to vlit into said reeessso as to prevent,longitudinal movement ofthe bolt, said ball ada ted to be forced into the chamber when the olt is rotated so as to free the bolt.

2. A seal lock comprising a locking` bolt, a guide therefor, said bolt beiner longitudinally and rotatably movable in said guide, a seal seat having,r a part associated with the bolt, and a part associated with the guide, a chamber opening into the bore of the guide, an elastic device in said chamber, a recess in the bolt, and a hit-.king` ball, said ball projecting into said recess, the bali adapted to be forced into the chamber when the bolt is rotated so as to free the bolt.

3. A seal lock comprising a locking bolt, a guide therefor, said bolt being rotatably and longitudinally movable in said guide, a seal seat havingr a part associated with the bolt, and a part associated with the guide, a chamber opening into the bore ofv said guide and closed at the other end, a coil spring in said chamber, a ball adapted to be inserted in said chamber so as to be engaged by said spring, the ball and spring adapted to be inserted into the chamber through the bore ol the guide, a recess in said bolt into which said ball is forced by said spring so as to lock the bolt against longitudinal movement, said recess having an inclined face at the side .so that when rotated. the ball will be l'orced into the chamber and the bolt released.

4. A seal lock comprisingr a locking bolt, a guide therefor, said bolt beiner rotatalily and longitudinally movable in sai-d guide, an en-` larged head on said bolt, two lugs attached to said guide and provided with seal receiving recesses ada )ted to receive a portion of a frangiblc seal, the material between the lugs cut away so as to forni a space into which the lower part ol' the enlarged head ol" the bolt is received, a seal receiving recess in said enlarged head adapted to receive a portion of a frangible seal, a locking` device for locking, the bolt against longitudinal movement but adapted to permit rotary movement thereof, the part of the enlarged head between said lugs adapted to engage said seal so as to break it when the bolt is rotated.

5. A seal lock comprising a loekiingr bolt, a guide therefor in which said bolt is free to rotate and to move longitudinally, a ball lor locking said bolt against longitluliual movement, said ball intermmliate the ends of the bolt when in its locking position and means for removing said bolt from its locking;l position.

Wllilllnhl li. SlCBRlNG.

Witnesses:

Anno'r'r Porn, J. F. TnoMAs. 

